Awareness Alert -- -- September 9, - 12th, 2011
EVENT INFORMATION:
A major 6.7 quake has taken place within the Cascadia subduction zone. This zone is possibly hundreds of years overdue for a major quake event, and we have concluded that this quake may be a possible precursor for a much larger quake in the days to come. We will continue observing the zone and its seismic activity and give instructions and updates when available.
A major 6.7 quake has taken place within the Cascadia subduction zone. This zone is possibly hundreds of years overdue for a major quake event, and we have concluded that this quake may be a possible precursor for a much larger quake in the days to come. We will continue observing the zone and its seismic activity and give instructions and updates when available.
WARNING AREA AND DURATION:
West coast of Canada and United States within the Cascadia Subduction Zone, until Monday, September 12, 2011 at midnight, EST.
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HOW BIG ARE CASCADIA SUBDUCTION ZONE QUAKES?
Great Subduction Zone earthquakes are the largest earthquakes in the world, and can exceed magnitude 9.0. Earthquake size is porportional to fault area, and the Cascadia Subduction Zone is a very long sloping fault that stretches from mid-Vancouver Island to Northern California. It separates the Juan de Fuca and North America plates. Because of the very large fault area, the Cascadia Subduction Zone could produce a very large earthquake, magnitude 9.0 or greater, if rupture occurred over its whole area.
EMERGENCY INSTRUCTIONS:1) If you live in the Cascadia subduction region (see map), please remain away from coasts, off of beaches, and on elevated positions.
2) Please remain close to your TV or radio should Tsunami alerts or emergency instructions be issued by your government or emergency authority.
3) In the event of a large quake event, immediately abandon any low-lying positions and seek elevation: do NOT return to fetch items until the Tsunami warning has been lifted.
4) Many buildings within the Cascadia subduction zone are not built to withstand a quake event of the magnitude that would result from the plate slipping and relieving its pressure. At the very first sign of quake activity, go outside immediately into an open area, and stay aware of power lines and other hazards.
Friday, July 22, 2011
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not sure why comments aren't working, but
ReplyDeletewe wrote very similar articles a month apart.
good luck and i hope we are both wrong! LOL